import random
import string

from PIL import Image, ImageDraw, ImageFont, ImageFilter


def check_code(width=120, height=30, char_length=1, font_path='arial.ttf', font_size=28):
    code = []
    img = Image.new('RGB', (width, height), (255, 255, 255))
    draw = ImageDraw.Draw(img, mode='RGB')

    def rndChar():
        """
        生成随机字母
        :return:
        """
        # return chr(random.randint(ord('a'), ord('z')))
        return str(random.randint(0,9))

    """生成随机颜色"""

    def rndColor():
        return (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255))

    # 写文字
    font = ImageFont.truetype(font_path, font_size)
    for i in range(char_length):
        char = rndChar()
        code.append(char)
        h = random.randint(0, 4)
        draw.text([i * width / char_length, h], char, font=font, fill=rndColor())
    # # 写点干扰
    # for i in range(40):
    #     draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())
    #
    # # 写点干扰圆圈
    # for i in range(40):
    #     draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())
    #     x, y = random.randint(0, width), random.randint(0, height)
    #     draw.arc((x, y, x + 4, y + 4), 0, 90, fill=rndColor())
    # # 画干扰线

    for i in range(5):
        x1, y1 = (random.randint(0, width), random.randint(0, height))
        x2, y2 = (random.randint(0, width), random.randint(0, height))

        draw.line(((x1, y1), (x2, y2)), fill=rndColor())

    img = img.filter(ImageFilter.EDGE_ENHANCE)
    return img, ''.join(code)



# if __name__ == '__main__':
#     img,code_str = check_code()
#     print(code_str)
#
#     with open('code.png','wb') as f:
#         img.save(f,'PNG')
